ICMN's activities in the field of environmental metrology are focused on the development of electrochemical sensors based on carbon materials, for the detection of electroactive micropollutants in aqueous media. The strategy adopted in our work involves the implementation by screen printing of the working electrode (SPE Screen Printed Electrode) using a conductive carbon ink. This production method allows good reproducibility of the SPE and can be easily applied to the industrial scale. In this context, we first try to optimize the experimental parameters of screen printing method (screen mesh number and pressure during heat treatment) with a commercial carbon ink in order to obtain electrodes with good electroactivity and good reproducibility. SPEs are controlled and checked electrochemically, using a negative redox probe. The electrodes thus optimized will be used for the detection of two medicinal compounds, Sulfamethoxazole and Carbamazepine, as well as the detection of a metal cation, lead Pb (II). We will then study the impact of immersion of the SPEs on the evolution of the electrochemical properties of the electrodes over time.

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